Growth dynamics of the epitaxial SrO film on SrTiO3(001)

被引:32
作者
Takahashi, R
Matsumoto, Y
Ohsawa, T
Lippmaa, M
Kawasaki, M
Koinuma, H
机构
[1] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
[2] Tokyo Inst Technol, Dept Innovat & Engineered Mat, Midori Ku, Tsukuba, Ibaraki 2268503, Japan
[3] COMET, Tsukuba, Ibaraki 3050044, Japan
[4] Japan Sci & Technol Corp, CREST, Tokyo 1690072, Japan
基金
日本学术振兴会;
关键词
surface structure; atomic layer epitaxy; laser epitaxy; oxides; perovskites;
D O I
10.1016/S0022-0248(01)01741-9
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
The initial growth of SrO thin films was investigated by in-situ reflection high-energy electron diffraction (RHEED) and scanning tunneling microscope (STM). When SrO was deposited under epitaxial growth conditions on B-site terminated SrTiO3(0 0 1) substrate, the first layer reacted with the B-site layer to grow as A site layer of the perovskite. Once this A-site layer was completed, the subsequent SrO layers were grown in a layer-by-layer manner. The basic unit for layer-by-layer growth is a rock-salt unit cell. The growth mode of SrO on SrTiO3(0 0 1) is discussed in relation to the crystal lattice habit. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:505 / 508
页数:4
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